pseu·do·coel noun alsopseu·do·celeorpseu·do·coele\ˈsüdōˌsēl\; orpseu·do·coelom\|sü(ˌ)dō+\ (-s) Etymology:pseud- + -coel, -cele, -coele or coelom : a body cavity that is not the product of gastrulation and is not lined with a well-defined mesodermal membrane (as in rotifers and various worms) — compare coelom • pseu·do·coe·lic\| ̷ ̷ ̷ ̷|sēlik\adjective